CN110529309A - A kind of novel small-sized external fuel oil pump - Google Patents
A kind of novel small-sized external fuel oil pump Download PDFInfo
- Publication number
- CN110529309A CN110529309A CN201910713228.8A CN201910713228A CN110529309A CN 110529309 A CN110529309 A CN 110529309A CN 201910713228 A CN201910713228 A CN 201910713228A CN 110529309 A CN110529309 A CN 110529309A
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- China
- Prior art keywords
- fuel oil
- pump
- oil pump
- upper cover
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
- F02M37/44—Filters structurally associated with pumps
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of novel small-sized external fuel oil pumps, it is related to engine fittings technical field, it include: upper cover body and lower case, fuel oil pump housing is formed between upper cover body and lower case, upper cover body top is equipped with oil inlet pipe, exhaust pipe and the flowline of connection fuel oil pump housing, oil return pipe is additionally provided in upper cover body, float seal component is additionally provided in fuel oil pump housing, the pressure valve module that is connected to oil return pipe, the pump housing for pumping out the oil liquid in fuel pump from flowline and be used to control exhaust pipe opening and closing exhaust sealing component；Float seal component includes needle-valve, connecting plate, shaft core and float body, and upper cover body lower part is additionally provided with axle center bracket, and shaft core is arranged on the bracket of axle center；Exhaust sealing component includes that ball sealer, ball seat and the exhaust bracket being arranged at the nozzle of exhaust pipe, ball seat are fixed by exhaust bracket, and vehicle fuel pump structure of the invention is simple, substantially reduces the volume of fuel pump, and is used safe and reliable.
Description
Technical field
The present invention relates to engine fittings technical field, especially a kind of novel small-sized external fuel oil pump.
Background technique
In recent years, many manufacturers of engines have been developed and using Scroll-type petrolifts, in providing fuel to
Combustion engine；Since turbine pump is normally more effective and manufacturing cost is lower, with use gerotor or rotation blade portion
Most of traditional fuels pump of part is compared, and turbine pump is more highly preferred to, it can be common that turbine fuel pump is arranged in fuel tank, but
It is the field that turbine fuel pump is not particularly suitable for small application engine in case；With the manufacturer of automobile or power transportation industry
Difference, small application manufacturers of engines are often attempted to using can universally be employed in a wide range of different types of engine
On fuel system, and be applicable to carburetor engine and using EFI system engine fuel system；But it is common
Turbine fuel pump it is lower in the engine of different same types and the versatility of vehicle；Therefore small application manufacturers of engines allusion quotation
Rely on the inline petrolift positioned at fuel tank type to replace turbine fuel in case to pump.
But be located at fuel tank inline petrolift exist with these application in inline pump using it is associated its
Its disadvantage；First it is generally necessary to the pressure of the fuel output of petrolift be adjusted by using pressure regulator, so that fuel is defeated
It send the design of system to complicate, and return fuel conduit must also be provided, pressure regulator is coupled into the hopper that strile-backs, thus
The fuel for allowing to leave adjuster is returned to fuel tank, may reduce the service life and reliability of fuel tank；Therefore, at least
For those reasons, need the improved engine-mounted fuel delivery system of one kind can be particularly suitable for starting with small application
Machine is used in combination, and has good versatility, and this improved engine-mounted fuel delivery system forces at phase
Requirement in the electronic system of associated engine or vehicle is reduced.
A kind of fuel pump as disclosed in Chinese utility model patent CN205503322U.Connect including oil inlet and fuel tank
It connects and fuel pump ontology that oil outlet is connect with fuel oil supply system, the side of the fuel pump ontology is additionally provided with fuel oil and returns
Device is flowed, which includes the back cavity being fixedly connected with fuel pump ontology and the heat dissipation machine in back cavity
Structure, the both ends of the back cavity are respectively equipped with the reflux import that connection is connected with fuel oil supply system and company are connected with fuel tank
The bypass outlet connect, the interior reflux entrance of the back cavity are equipped with check valve；The fuel pump volume of the utility model patent is larger,
Installation versatility is not strong, and security performance is not able to satisfy higher and higher requirement, and cannot automatically adjust pump pressure.
Summary of the invention
The present invention provides a kind of novel small-sized external fuel oil pump for drawbacks described above present in the prior art,
Solve that volume present in existing fuel pump is larger, it is lower to also solve existing fuel pump safety for the not strong problem of versatility
The problem of.
In order to solve the above technical problems, the present invention provides a kind of novel small-sized external fuel oil pump, comprising: upper cover body and
Lower case, between upper cover body and lower case formed fuel oil pump housing, upper cover body top be equipped with connection fuel oil pump housing oil inlet pipe,
Exhaust pipe and flowline are additionally provided with oil return pipe in upper cover body, and oil return pipe one end is connected to fuel oil pump housing, the oil return pipe other end with
Connection in the middle part of flowline is additionally provided with float seal component in fuel oil pump housing, the pressure valve module that be connected to oil return pipe, is used for general
The pump housing that oil liquid in fuel pump is pumped out from flowline and the exhaust sealing component of the opening and closing for controlling exhaust pipe；
Float seal component includes needle-valve, connecting plate, shaft core and float body, and one end of the connection board is fixed with float sheet
Body, the card adapter plate other end and shaft core are hinged, and needle-valve one end cooperates with the needle seating being arranged in oil inlet pipe for controlling oil inlet
The middle part of the opening and closing of pipe, the needle-valve other end and connecting plate connects, and upper cover body lower part is additionally provided with axle center bracket, and shaft core is arranged in axis
On cardiac skeleton；
Exhaust sealing component includes ball sealer, ball seat and the exhaust bracket being arranged at the nozzle of exhaust pipe, and ball seat is logical
Exhaust bracket to be crossed to fix, ball sealer is arranged in the accommodation space that ball seat and exhaust bracket are formed, by adopting the above technical scheme, this
The vehicle fuel pump structure of invention is simple, substantially reduces the volume of fuel pump, and uses safe and reliable.
Wherein, needle-valve bottom is equipped with card slot, and connecting plate is equipped with bayonet and baffle, and needle-valve and connecting plate pass through card slot and card
The cooperation clamping of mouth, baffle are located at shaft core top, effectively can control needle by float body by adopting the above technical scheme
The open and-shut mode of valve.
Wherein, pressure valve module includes pressure valve body, pressure valve strainer, the Yi Jiyong that pressure valve body upper part is arranged in
In the pressure bonnet of fixation pressure valve body.
Wherein, the pump housing includes oil outlet sealing ring, pump core and strainer, and the setting of oil outlet sealing ring is fuel-displaced on pump core top
Mouth sealing ring is used for the sealing of pump core and flowline junction, and strainer setting is in pump core lower part, and strainer will be for that will enter pump core
Oil filtrating；Metal pin is equipped at the top of pump core, metal pin and the pin being threaded through in upper cover body are mating.
Wherein, before oil liquid pressure of the pressure valve body in flowline reaches predetermined pressure, it is in normally off, when out
Oil liquid pressure in oil pipe beyond after predetermined pressure, open by pressure valve body, and the part oil liquid in flowline passes through oil return pipe, pressure
The pressure valve of power valve strainer and opening flows back in fuel oil pump housing, by adopting the above technical scheme, can be good at guaranteeing flowline
Interior pressure is stablized.
Wherein, sealing strip is equipped between upper cover body and lower case, sealing strip and oil outlet sealing ring material are rubber；Upper cover
It is fixed between body and lower case by self-drilling connection, the material of upper cover body and lower case is engineering plastics；On the outside of lower case
The mounting plate stretched out equipped at least one, mounting plate are used to fuel pump being installed to engine.
Wherein, pin sheath is additionally provided at the top of pump core, pin sheath is used for the fixation of metal pin and pin, pin sheath
On set there are two cross-shaped through hole, vertical openings slot, metal pin and the orthogonal insertion cross of pin are equipped among pin
In through-hole, metal pin is connected in the vertical openings slot of pin.
Detailed description of the invention
Fig. 1 is a kind of perspective view of novel small-sized external fuel oil pump of the present invention；
Fig. 2 is that a kind of novel small-sized external fuel oil of the present invention pumps exploded pictorial Fig. 1；
Fig. 3 is that a kind of novel small-sized external fuel oil of the present invention pumps exploded pictorial Fig. 2；
Fig. 4 is a kind of pressure valve component diagram of novel small-sized external fuel oil pump of the present invention；
Fig. 5 is a kind of float seal component diagram of novel small-sized external fuel oil pump of the present invention；
Fig. 6 is a kind of pump housing schematic diagram of novel small-sized external fuel oil pump of the present invention；
Fig. 7 is a kind of upper cover body schematic diagram of novel small-sized external fuel oil pump of the present invention；
In figure: 1 is upper cover body；2 be lower case；3 be oil inlet pipe；4 be oil return pipe；5 be exhaust pipe；6 be flowline；7 are
Float seal component；8 be pressure valve module；9 be the pump housing；10 be exhaust sealing component；11 be needle-valve；12 be connecting plate；13 are
Shaft core；14 be float body；15 be axle center bracket；16 be pressure valve strainer；17 be pressure valve body；18 be pressure bonnet；
19 be ball sealer；20 be ball seat；21 be oil outlet sealing ring；22 be pump core；23 be strainer；24 be pin sheath；25 be sealing
Item；26 be mounting plate；28 be card slot；29 be bayonet；30 be baffle；31 be needle seating；32 be exhaust bracket；34 be pin；35
For pin.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example cannot be used to limit the scope of the invention for illustrating the present invention.
Embodiment 1:
The novel small-sized external fuel oil pump of one kind of the embodiment of the present invention, as shown in Figures 1 to 7, comprising: upper cover body 1
With lower case 2, fuel oil pump housing is formed between upper cover body 1 and lower case 2,1 top of upper cover body is equipped with connection fuel oil pump housing
Oil inlet pipe 3, exhaust pipe 5 and flowline 6 are additionally provided with oil return pipe 4 in upper cover body 1, and 4 one end of oil return pipe is connected to fuel oil pump housing,
It is connected in the middle part of 4 other end of oil return pipe and flowline 6, float seal component 7 is additionally provided in fuel oil pump housing, is connected to oil return pipe 4
Pressure valve module 8, the pump housing 9 for pumping out the oil liquid in fuel pump from flowline 6 and be used to control exhaust pipe 5
The exhaust sealing component 10 of opening and closing；
As shown in Figure 1, pressure valve module 8 is arranged at the communication port of oil return pipe 4 and fuel oil pump housing, pressure valve module 8
Including pressure valve body 17, the pressure valve strainer 16 on 17 top of pressure valve body is set and for fixation pressure valve body
17 pressure bonnet 18；Specifically, pressure valve module 8 is in order to enable the oil liquid pressure of flowline 6 keeps stabilization, i.e. pressure valve
Ontology 17 is in normally off, when the oil liquid pressure in flowline 6 before the oil liquid pressure in flowline 6 reaches predetermined pressure
After power exceeds predetermined pressure, pressure valve body 17 is opened, and the part oil liquid in flowline 6 passes through oil return pipe 4, pressure valve strainer 16
It is flowed back in fuel oil pump housing with open pressure valve 9, to guarantee that the oil liquid pressure of flowline 6 is stablized, pressure valve strainer 16 is risen
To the effect of filtering, pressure bonnet 18 is by being connected to 1 bottom of upper cover body, thus by pressure valve strainer 16 and pressure valve sheet
Body 17 is fixed at the communication port of oil return pipe 4 and fuel oil pump housing.
As shown in figure 5, float seal component 7 includes needle-valve 11, connecting plate 12, shaft core 13 and float body 14, connection
12 one end of plate is fixed with float body 14, and 12 other end of card adapter plate and shaft core 13 are hinged, and 11 one end of needle-valve and setting are in oil inlet
Needle seating 31 in pipe 3 cooperates, and needle-valve 11 is used to control the opening and closing of oil inlet pipe 3, the middle part of needle-valve 11 other end and connecting plate 12
Connection, 1 lower part of upper cover body are additionally provided with axle center bracket 15, and shaft core 13 is arranged on axle center bracket 15, specifically, float body
14 be the hollow plastic part with certain volume, when the oil liquid in fuel oil pump housing reaches certain liquid level, float body
14 can swim on oil liquid under natural buoyancy effect, at this point, floating as the oil liquid liquid level in fuel oil pump housing changes
Sub- ontology 14 can also float up and down, since 12 one end of connecting plate and float body 14 are fixed, 12 other end of connecting plate and shaft core
13 is hinged, then floating up and down for float body 14 will drive the central spindle 13 that rotates of connecting plate 12 and rotate, and needle-valve 11 is set vertically
It sets, 11 bottom end of needle-valve is connect with the middle part of connecting plate 12, and connecting plate 12 rotates central spindle 13 when rotating, and needle-valve 11 also can be
Move up and down under the drive of connecting plate 12, when the oil liquid liquid level in fuel oil pump housing reach a certain height, needle-valve 11 to
Sealing is realized in upper insertion needle seating 31, oil inlet pipe 3 is closed, no longer oil inlet in fuel oil pump housing；
As shown in Figure 3 and Figure 7, including ball sealer 19, ball seat 20 and exhaust pipe 5 is arranged in exhaust sealing component 10
Exhaust bracket 22 at nozzle, ball seat 20 is fixed by exhaust bracket 22, and ball sealer 19 is arranged in ball seat 20 and exhaust bracket 22
In the accommodation space of formation, specifically, exhaust sealing component 10 can be used for the exhaust outlet by exhaust pipe 5 in fuel oil pump housing
It blocks, prevents the oil liquid of fuel oil pump housing from letting out when fuel pump is turned on one's side or is inverted from exhaust pipe 5, in the present embodiment
Ball sealer 19 use steel ball, exhaust bracket 22 use fence structure.
As shown in figure 5, being additionally provided with card slot 28 in 11 bottom of needle-valve, connecting plate 12 is equipped with bayonet 29 and baffle 30, needle-valve
11 are clamped with connecting plate 12 by the cooperation of card slot 28 and bayonet 29, to realize that connecting plate 12 drives needle-valve 11 transport up and down
Dynamic effect, baffle 30 are located at 13 top of shaft core, baffle 30 also can therewith connecting plate 12 rotation and rotate, in fuel oil pump chamber
During intracorporal oil liquid reduces, the position of float body 14 can also be continued to decline, at the same time, the baffle 30 on connecting plate 12
Also it can rotate upwards, when being lower than a default liquid level, the baffle 30 on connecting plate 12 is rotated to and put in fuel oil pump housing
3 tube wall of oil inlet pipe abuts, so that connecting plate 12 is not rotating, i.e., float sheet when the oil liquid in fuel oil pump housing continues to reduce
14 position of body will not decline.
Sealing strip 25 is equipped between upper cover body 1 and lower case 2, sealing strip 25 and 21 material of oil outlet sealing ring are rubber,
For guaranteeing that fuel pump inner fluid will not flow out；It is fixed between upper cover body 1 and lower case 2 by self-drilling connection, Huo Zheqi
He is attached common fastener, such as bolt screw rod etc., and the material of upper cover body 1 and lower case 2 is engineering plastics, common
Such as PPA+GF40 or POM；At least one mounting plate 26 stretched out is equipped on the outside of lower case 2, mounting plate 26 is for pacifying fuel pump
It is attached on engine.
Embodiment 2:
Compared to embodiment 1, in example 2, the pump housing 9 includes oil outlet sealing ring 21, pump core 22 and strainer 23, fuel-displaced
For the setting of mouth sealing ring 21 on 22 top of pump core, oil outlet sealing ring 21 is used for the sealing of pump core 22 and 12 junction of flowline, filter
The setting of net 23 is in 22 lower part of pump core, and strainer 23 will be for that will enter the oil filtrating of pump core 22, and 23 material of strainer is PA, strainer
23 minimum filtering particle 15um, efficiency > 90%, the effective filtration area 40cm2 of strainer 23, specifically, 23 a part of strainer
It is fixed on 22 bottom of pump core, another part is folded in 22 side of pump core, effective to improve while increasing filter area
Filter effect.
Metal pin 34 is equipped at the top of pump core 22, metal pin 34 and the pin 35 being threaded through in upper cover body 1 are mating,
Circuit connection for pump core 22.
Embodiment 3:
Compared to embodiment 2, in embodiment 3, pin sheath 24 is additionally provided at the top of pump core 22, pin sheath 24 is for gold
The fixation for belonging to pin 34 and pin 35 is set on pin sheath 24 there are two cross-shaped through hole, equipped with vertical openings among pin 35
In slot, metal pin 34 and the orthogonal insertion cross-shaped through hole of pin 35, metal pin 34 is connected to vertically opening for pin 35
In mouth slot, specifically, the possibility of metal pin 34 and pin 35 being plugged with there may be disengaging passes through pin sheath 24
Setting can effectively ensure that the reliable of metal pin 34 and 35 grafting of pin.
In the specific use process, after engine fuel oil system powers on, fuel pump starts fuel feeding, on system pressure
It rises；When 6 fuel pressure of flowline increases to authorized pressure, the spring force of pressure valve is overcome to separate valve ball with valve,
Extra fuel oil is sent back into fuel oil pump housing, the pressure kept constant；With the closing of power supply, fuel pump fuel cut-off makes
The decline of system pressure moment, pressure valve, which is in, at this time closes state of pressure keeping.
Compared to the inline petrolift of tradition, the novel small-sized external fuel oil pump of this money has following characteristics: it is versatile, more
It is easy to be used in combination with various types of engines and/or associated vehicle；Size is smaller, forces at associated engine
Or the requirement in the electronic system of vehicle is reduced.The novel small-sized external fuel oil pump of one kind provided by the invention, by tight
The structure design gathered, so that fuel pump overall dimensions are smaller, and forces at the electronic system of associated engine or vehicle
On requirement be reduced, it is versatile, it is easier to be used in combination with various types of engines；While float seal component 7
Automatic control effect, the safety effect of exhaust sealing component 10 and pressure valve body 17 maintain pressure balanced effect, mention significantly
The high safety and reliability of fuel pump entirety.
The above is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come
It says, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of novel small-sized external fuel oil pump, which is characterized in that on the novel small-sized external fuel oil pump includes:
Lid (1) and lower case (2) form fuel oil pump housing, on the upper cover body (1) between the upper cover body (1) and lower case (2)
Portion is equipped with oil inlet pipe (3), exhaust pipe (5) and the flowline (6) of connection fuel oil pump housing, is additionally provided with back on the upper cover body (1)
Oil pipe (4), described oil return pipe (4) one end are connected to fuel oil pump housing, are connected in the middle part of oil return pipe (4) other end and flowline (6),
Float seal component (7) is additionally provided in fuel oil pump housing, the pressure valve module (8) that is connected to the oil return pipe (4), for that will fire
The exhaust of the pump housing (9) and the opening and closing for controlling exhaust pipe (5) that oil liquid in oil pump is pumped out from the flowline (6) is close
Sealing assembly (10)；
The float seal component (7) includes needle-valve (11), connecting plate (12), shaft core (13) and float body (14), described
Connecting plate (12) one end is fixed with float body (14), card adapter plate (12) other end and the shaft core (13) hingedly, institute
It states needle-valve (11) one end and needle seating (31) in oil inlet pipe (3) is set and cooperate opening and closing for controlling oil inlet pipe (3), it is described
Needle-valve (11) other end is connect with the middle part of connecting plate (12), and upper cover body (1) lower part is additionally provided with axle center bracket (15), described
Shaft core (13) is arranged on the axle center bracket (15)；
The exhaust sealing component (10) includes ball sealer (19), ball seat (20) and is arranged at the nozzle of exhaust pipe (5)
Exhaust bracket (22), the ball seat (20) is fixed by exhaust bracket (22), and the ball sealer (19) is arranged in the ball seat
(20) in the accommodation space formed with exhaust bracket (22).
2. a kind of novel small-sized external fuel oil pump as described in claim 1, which is characterized in that needle-valve (11) bottom
Equipped with card slot (28), the connecting plate (12) is equipped with bayonet (29) and baffle (30), the needle-valve (11) and connecting plate (12)
It is clamped by the cooperation of the card slot (28) and bayonet (29), the baffle (30) is located at shaft core (13) top.
3. a kind of novel small-sized external fuel oil pump as described in claim 1, which is characterized in that the pressure valve module
(8) include pressure valve body (17), be arranged in the pressure valve strainer (16) on pressure valve body (17) top and for fixing
State the pressure bonnet (18) of pressure valve body (17).
4. novel small-sized external fuel oil pump as described in claim 1 a kind of, which is characterized in that the pump housing (9) includes
Oil outlet sealing ring (21), pump core (22) and strainer (23), the oil outlet sealing ring (21) are arranged on the pump core (22)
Portion, the oil outlet sealing ring (21) are used for the sealing of the pump core (22) and the flowline (12) junction, the strainer
(23) setting is in the pump core (22) lower part, and the strainer (23) will be for that will enter the oil filtrating of the pump core (22).
5. a kind of novel small-sized external fuel oil pump as claimed in claim 4, which is characterized in that at the top of the pump core (22)
Equipped with metal pin (34), the metal pin (34) and the pin (35) being threaded through on upper cover body (1) are mating.
6. a kind of novel small-sized external fuel oil pump as claimed in claim 3, which is characterized in that the pressure valve body
(17) before the oil liquid pressure in the flowline (6) reaches predetermined pressure, it is in normally off, when the flowline (6)
After interior oil liquid pressure exceeds predetermined pressure, the pressure valve body (17) is opened, and the part oil liquid in flowline (6) passes through back
Oil pipe (4), pressure valve strainer (16) and the pressure valve (9) opened flow back in fuel oil pump housing.
7. novel small-sized external fuel oil pump as described in claim 1 a kind of, which is characterized in that the upper cover body (1) with
Sealing strip (25) are equipped between lower case (2), the sealing strip (25) and oil outlet sealing ring (21) material are rubber.
8. novel small-sized external fuel oil pump as described in claim 1 a kind of, which is characterized in that the upper cover body (1) with
Lower case is fixed between (2) by self-drilling connection, and the material of the upper cover body (1) and lower case (2) is engineering plastics.
9. a kind of novel small-sized external fuel oil pump as described in claim 1, which is characterized in that the lower case (2) is outside
Side is equipped at least one mounting plate (26) stretched out, and the mounting plate (26) is used to fuel pump being installed to engine.
10. a kind of novel small-sized external fuel oil pump as claimed in claim 5, which is characterized in that pump core (22) top
Portion is additionally provided with pin sheath (24), and the pin sheath (24) is used for the fixation of metal pin (34) and pin (35), described to insert
It is set on foot sheath (24) there are two cross-shaped through hole, the pin (35) is intermediate to be equipped with vertical openings slot, the metal pin
(34) and in pin (35) orthogonal insertion cross-shaped through hole, the metal pin (34) is connected to vertically opening for pin (35)
In mouth slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910713228.8A CN110529309A (en) | 2019-08-02 | 2019-08-02 | A kind of novel small-sized external fuel oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910713228.8A CN110529309A (en) | 2019-08-02 | 2019-08-02 | A kind of novel small-sized external fuel oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110529309A true CN110529309A (en) | 2019-12-03 |
Family
ID=68661246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910713228.8A Pending CN110529309A (en) | 2019-08-02 | 2019-08-02 | A kind of novel small-sized external fuel oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110529309A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115342015A (en) * | 2022-08-02 | 2022-11-15 | 常州市合达油泵有限公司 | Combined fuel pump |
-
2019
- 2019-08-02 CN CN201910713228.8A patent/CN110529309A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115342015A (en) * | 2022-08-02 | 2022-11-15 | 常州市合达油泵有限公司 | Combined fuel pump |
| CN115342015B (en) * | 2022-08-02 | 2024-05-17 | 常州市合达油泵有限公司 | Combined fuel pump |
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